Carpet-sweeper.



0. R. CHAPLIN.

CARTET EWEEPBB.

Ammann-)N FILM] Nov.13,19o6.

909,366. Patented Jan.12,1909

3 sums-simu 1 TTM 0. R. GHAPLIN.

GARPET SWBEPBR.

APPLIOATION HLBD 1:01am. 190m 909,366. Patented Jan. 12,1909.

3 SHEETS-SHEET 2` ATT'K 3 SHEETS-SHEET 3,

Patented J an. 12, 1909.

. R. CHAPLIN.

GAWET SWEEPER.

APPLIQATION FILED N0v.13,19o6.

UNITED STATES PATENT oFFioE.

ORRIL R. CHAPLlN, OF BOSTON, MASSACHUSETTS, ASSIGNOR OF ONE-HALF TO ROBERT W. HOWARD, OF BOSTON, MASSACHUSETTS.

CARPET-SWEEPER.

Specification o! Letten Patent.

Patented Jan. 12, 1909,.

Application sind November 1s, isos. ser-iai No. 343,232.

To all whom it may concern:

Be it known that I, ORRIL R. CHAPLIN, a citizen 4of the United States, residing at Boston, in the county of Suffolk and State of Massachusetts, have invented certain new and useful Iin rovements in Carpet- Sweepers, of which t e following is a specification, reference being had therein to the accompanying drawings.'

My`1nvention relates to certain improvements in carpet-swee ers, particularly c arpet-sweepers of that c ass which comprise a casing, a rotating brush within the casing with means for quickly and easily adjusting the pressure of the brush upon the carpet, drivin -wheels in the rear end of the casing whichiave contact with the iioor, and driving-connections between said wheels and the brush for rotating the latter.

The invention also relates to novel forms of sweeping-pans and their connections with the sweeper, whereby the dirt is easily removed, and to various other im rovements, as will hereinafter appear, designed to lighten the labor incidental to the use of car et-sweepers.

he invention consists in the combination of elements and in certain parts of construction entailed in the combination of said elements to obtain the desired result.

A full understanding of the invention can best be given by a detailed description of a preferre construction embodying th varionsr features of the invention, and such a descri,` Ationwill now be ivennpconnection withlt` e' accompanyin frawings, and I attain my object by t e mechanism there illustrated showing such preferred construction, andthe features forming the invention will then be specifically pointed tout in the claims.. y

Insaid drawings, Figure l' is a yplan view of theusweeper, partly in section, parte of the upper `casing being broken away. Fi 2 is a transverse vertical central section an showing the leftinner end of the sweeper. Fig. 3 is averticalsectional view of the` rightinner end of the same. Figp4 is a sectional view of the lower art of the sweeper showing the position o some of its arts when pressure ispapplied to thehande and the sweeper put inI forward motio1`i.`Fig. 5 is a bottom view of the sweeper.` Fig.' 6 is an end view of the forward sweeping-pan. Fig. 7 is an end view of the rear sweepxin -pan. Fig. 8 is a sectional view through t c rush. Fi 9 is a sectional view of a portion of the ball and casing. Fig 1() is a detail sectional view of a portion of the end of the casing on -the line 10-10 of Fig. 3.

Correspondin and like parts are referred to in the following description and indicated in all the views ot the drawings by the same reference characters.

As shown in the drawings, the inclosin g casing consists of the end wa ls 12 and 14 an the top Wall 13, which extends, as shown in Figs. 1 to 3 inclusive, entirely over the top, front, and. rear sides of the machine and incloses all of the `mechanism of the carpetsweeper exce t part of the'drive-wheels and their gear. he ends are preferably made of rigid material, such as sheet metal, and the top wall is referably of papier-mch or aluminum, a though the ends and top wall can ybe made of wood or other material. The pans of the sweeper are preferably made of tin or alvanized iron an the gears or a portion ofgthern can be made to run noiseless by using iberor rawhide gears.

The numeral 15 designates a rotating brush, mounted horizontally in the casing and projecting at its lower portion below the Casin'y so as to have contact with the floor (see ige. 2 and 4). The top wall 13, which is designed to cover the rotating sweepingbrush 15, has the end plates 12 and 14, and the rotative brush 15 is mounted within the frame by studs 16 and 1'( extending inwardly through elongated slots 18 in the end walls 12 laiidl'. The heads of the studs 16 and 17 ff press'ag'ainst the outer sides of the hubs 4l Tand the stud arts project into the ends of hen the sweepers are new or` whena new brush is inserted in the swee er, the studs are about mid-way of the e ongga'ted slots and a free upward play is allowed whendownward pressure is applied to the sweeperand the brush 15 pressed against the ery, whereby the brush 15 is driven." The" brush 15 can be easily removed by raising the cover 49 of the frame-work 46, opening the sweepingans 23 and 24 and unscrewing the screw stu s 16 and 17.

The center of the rear side of the upper casing 13 is cut away, as at 25, farenouglito allow a portion of the drive-wheels 26 and 27 and their s ur-gear 28 to extend inwardly a sufficient dlistance to mesh with the pinion 29, which passes through the slot or o ening 25 in the casing and meshes into anot er in-` termediate gear 30, which gear 30 meshes with the gear 22 on the core 19 whereby the brush is revolved.

Extending rearwardly on each side of the opening 25 from the upper maincasing or frame 13 and at right angles to it, are the two horizontal bearings 33 and 34 adapted a`t their outer ends to support the driving-shaft 35, that carries the two main supporting driving-wheels 26 27, located between the said arns 31 and 32 and which impart motion to the series of gearing 28, 29, 3,0 and 22 that drives the revolving brush. 'The two supporting drive-wheels 26 and 27, which are suitably mounted in the center of the rear side of the main upper casing, are provided on their peripheries with yielding frictiontires of rubber or other suitable material.

The supporting-drive wheel 26 consists of a thin rim 36 (u on which the yieldin friction-tire is stretc led), which is provide with a web 3 7 on the inner end crosswise, forming at the center a hub 39, which is attached to the main shaft 35. On the inner side ofthe' web is a fastening pin or lug 38, extending into a hole in the web of the spur-gear 28 on the shaft ,35. |The supporting drive-wheel 27 is constructed similar to the drive-wheel 26 and has the thin rim 36, with web 37, having a similar inward-extending pin or lug 38.

The rear inner side of the top wall 13 is provided with inwardly extendingfl and 44 and a late 45 is extendedijiI inner ends of t ie'flanges 43 and 44 to the dust from escaping from the, weepe'r. 'Ihe plate 45 is provided with an,l eo a slot through which the pinion egg 'Ihe portion of the'pinion 29 withmthe sweeper and the gears 22 and 3() arecoveredf by a suitable frame-work 46 attached screws 47 to the plate 45. T his fraaie-wor 46 protects the gearing from the swf lef'gxin'gqs of the brush 15. A portion of the frame-pv which I term the cover 49 is hinged as at" Ato the upper portion of the frame-workg (and, this cover closes over the gear 22 but be raised in order to remove from the sweeper. The series of bristles 48 on the core 19 adjacent to the frame-work 46 are slanted slightly towards the center of the carpet sweeper (see Figs. 1 and 5) so that a complete sweepin surface is obtained from one end of the brus to the other end. The

\ strasse frame-Work 46 also serves as bearings for the shaft 51 of the pinion 29 and for the shaft 52 of the ear 30.

The ail 54, the handle of which I have deemed it unnecessary to show, is pivoted on each side of the sweeper in bearings 55 extending from the u )per real' outer edges of the end walls 12 anti 14. Openings 56 in the top wall allow the pron s 54 of the bail to extend downward into t ie sweeper, and ears 57, rovided with slots 58, on the inner side of t e end walls 12 and .14 are adapted to hold the rongs 54' when they are sprung into the s ots 58 as the bail 54 is raised to a vertical position so as to hold the bail in an upright osition when not in use. r[he location of t e bail out of the center and towards the rear of the machine is made to bring the pressure more near] over the drive-wheels. [he slots 56 are T-s aped to allow the easy removal of the bail from the sweeper. Fi s. 1 and 3).

n the carpet sweeper I use two swee )ingpans 23 and 24, longitudinally arranged one on each side of the brush in position to receive its sweepings from the brush, both being differently constructed and of new and ori rinal desi ns. One of these ans, which is resignate 23, is pivoted in tie rear portion of the machine, extending lengthwise of the sweeper between the brush 15 and the driving-wheels and so arranged as to receive the sweepings on rearward motion of the sweeper. The other Lpan, designated 24, is pivoted in the forwar portion of the inaelune, extending lengthwise of the sweeper, forward of the brush and is so arranged as to receive the sweepin s on the forward motion of the sweeper. (n ee. Figs. 2 and 4). The rear pan 23 is provided with a rear vertical side 62, ends 59 and 60, and an inverted V- shaped forward side consisting of the inclined walls l63 and 64. Screw studs 61 ex- Y tend througlflgli'fnd walls 12 and *1l-fand are 23 allowirigfthe forward end of this j"an to be swuri vdownward when .it is'idesired to d clean thefpan or remove the brush I5." j `Ears 65 extend from Vbetween the inclinedvalls 63 and 64outward from the endsm59 and 60 throughfriotches in the end walls12^a1d 14 projecting" a shflicient distance to"`fal`lvv` the I side of a persons foot or finger tofhe placed on one o' the ears 65 to swing thefpan 23 downward and empty the pan ofY swieepings. Each of the ends 59 and 60 is providedwith a recess jinto ywhich a lug` or sto i pin 67 passes when the pan is swung bac' v Iinto its normal position., The lugs or sto" pins 67 project inward from the inner si esof the end walls V12 and" 14 and preventjtliepan frm swinging too far upward b forrelof the /curved tension springs 68, whic springs are attached at their upper end to pins 69 in the inner sides of the end walls 12 and 14, and

`llOt llt 76 inserted in the openings 77 on each end of the pan and having 'their upper ends attached to the pins 78, ears 79 similar to the ears of the pan 23, and slots 80 into which the stop ins 81 on the end walls 12 and`14 project w en the pan 24 is in its normal position. The inclined wall 75 is lengthened similar to the wall 64 but the ends 72 and 73 project forward a considerable distance as at 82 forming a curved seat for the inclined face of the ugs 93.

The ends of the pan 24 are recessed to allow of the inserting ofthe two supportingrollers 83, that are preferably in the front art of the machine. These rollers 83 are journaled on stud pins 84 extending through the end walls 12 and 14 and screwed into t e ears 86 on the framework of the pan 24. The pan 24 is therefore jivotally mounted on the stud pins 84. Eac roller is protected from the sweepings by the hoods or covers 85.

Each ear 79 has screwed thereon a plate 87, held in a locked position by a screw 90,

and an opening in the ear and plate form a i bearing for the Shaft 88 carrying a roller 89 which roller extends lon ltudinally of the sweeper from one end wal 12 to the other end wall 14 and allows the adjusting of the an 24 to the sweeping brush when pressure J 1s placed upon the bail in the act of sweeping. This roller also allows of the ready turning around of the sweeper while sweeping a carpet with a dee nap (see Fig. 4); if this roller was left o the brush would sink into the nap of the carpet and prevent the easy turning of the sweeper when in the act of sweeping. .Y

A stud pin 91 screwed through the end wall 12 has pivotally mounted thereon an arm 42 having a downward extending lug 93 having an inclined face adapted to rest on one of the curved projections 82 (see Fig. 3). The arm 42 is provided with a hub 41 extending into the elongated Slot 18 and into 5 which hub the screw stud 17 is screwed; the head of the stud coming against the outer end of the hub 41 and its smooth shank passing into the end o'f the core 19. A downwardly pressing spring 94, attached at its upper end to an ear 95 on the inner` side of the end wall 12, has its lower end inserted into the hub 41 and serves to keep the brush pressed d own against the floor, and the inclined face of the lu'gs 93 a clined walls 74 and 75, curved tension springs l l 1 l `the end wall 14, if so desired.

su es,

by the screw 96 held by the ear 97 and against the under side of the arm 42.

'l he arm 42 at its forward end has a downwardly extendingv lever 98 carrying at its lower end a shoe 99 whereby the pressure of the brush to the floor is regulated. A similar arm, lever and shoe can be attached to the opposite end of the sweeper adjacent to rlhe shoe is preferably of considerable length `and as much breadth as possible to 'give the greatest amount of pressure surface.V 5 I* "l A lever 92 similar to the lever 42 is pivotally mounted on a stud pin 91 adjacent to the side wall 14 and has the adjusting screw 96, lug 93, provided with an inclined face hub 41 extending into the elongated slot 18, lever 98, but instead of the shoe has rotatively mounted on its lower end a roller 100 normally in contact with the floor when the machine is rightside up on the floor. lf dcsired a similar roller could be carried by the lever at the opposite end.

Having described my invention, I claim as new and desire to secure by Letters Patent- 1. In a carpet swee er the combination of a frame consistin o parallel end walls, a convex upper wa l supported by the end walls and provided with elongated slots adjacent to the end walls, notched ears attached to the inner side of the end walls below said slots, and a bail provided with prongs adapted to extend through said slots and lock in said ears when the bail is raised to a vertical position.

2. In a carpet sweeper, a casing, levers pivoted to the casing, a pair of parallel sweepln; pans having inverted V-shaped adjacent si es, an upper curved edge on the forward pan, a rotating sweeping-brush between said pans journaled in the levers, a revolving roller mounted within the inverted V-shaped side of the forward an extending the entire length of and parailel with the brush, and lugs 93 of the levers resting upon the upper curved edge of the forward pan whereby the upward movement of the roller will cause a corresponding u ward movement of the brush, substantie ly as shown and described.

3. In a carpetsweeper, a casing, levers pivoted to the casmg,a pair of parallelswceppans having inverted V-shaped adjacent an upper curved edge on the forward pan, a rotating sweeping-brush between said pans journaled in the levers, a revolving roller mounted within the inverted V- shaped side of the forward pan extending the entire length of and parallel with the brush, s rings 76 for pressing up the outer edge of tlie forward an, lugs 93 of the levers provided with 1nclined faces, and s rings 94 pressing the inclined faces of the llilgs upon the u per curved edge of the forward pan ainst the curved j where y the upward movement of the roller 5 u'pper edge 82 of the forwar pan, as adjusted l will cause a corresponding upward movement of the brush, substantially as shown and described.

4. In a carpet sweeper, a casing, levers x pivoted to the casing, a rotating swee ingi rush journaled in the levers, a pair o parallel sweeping pans having inverted V- i' sha ed adjacent sides adjacent to the brush an( adapted to have their ends nearest the brush swung downward, means for driving the brush, a revolving roller mounted with- 1 in the inverted V-shaped side and extending longitudinally of the forward pan for regulating the pressure of the brush upon theIv floor, and lugs 93 of the levers resting upon the upper curved edge of the forward pan 1 where y the upward and downward movement of the roller is transmitted to the brush.

In testimony whereof I aix my signature in presence 0f two witnesses.

ORRIL R. CHAPLIN Vitnesses CHARLES F. A. SMITH, ROBERT W. HOWARD. 

